Cable bumper



Oct. 9; 1928.

K. o. SCHAUMAN CABLE BUMPER 5 2 w z I 8 m m 5 h. 1. M ii m m s w. w V g N b 3 m w..mw.-.-m.mmmw==. A w NA- I w m m. .-RQ IEI 0 w a s w m ll: w d N 4 o c h m uh .l I I F R 57 I \N 1 a m I L N. Q

Oct 9, 1928 Oct.

K. O. SCHAUMAN CABLE BUMPER Filed May 10, 1926 3 Sheets-Shee-t Patented Get. 9, 1928.

UNITED srares KARL osrnn SCHAUMAN, or nnwvonrz, n. -Y., Assrenonrro- WILLIAM mam AVERY, or sari FRANCISCO, CALIFORNIA.

CABLE BUMPER.

Application, filed m 10,

The bumper includes a bow-shaped mem- 'b'er across whichis strung a network offlexible cables. The electrical contacts are controlled by spring-pressed sliding members which move whenever any part of the bumper receives a blow, thereby closing the contacts and; causing the operation of certainmechanism controlling the movement of the automobile.

WhileI have disclosed a preferred embodi ment for purposes of illustration, it should j be understood that various changes and modlfications 1n the structure may be made without departing from the spirit and'scope of r the invention as hereinafter set forth and I claimed. e

In the drawings:

Fig. 1 is a top planview ofthe bumper;

Fig. "2 is, a front elevation thereof; Fig. 3 1s a central vertlcal cross section on theline 3-3 in Fig; 2 and on larger scale :Fig. 4. is a detail section through one of the spreader members as indicated on the-line 4:& in Fig. 3;

l of'Fig; 5

Fig. 5 is a top plan view of the cable-tightening means located on the right in Fig. 1, the metal coverbeing shown in section;

Fig. 6 is a similar view but with cover rev moved and showing the anchor piece rotated to a position where it can be removed from the bumper; I

Fig. 7 is a vertical section on the line 77 Fig. 8 is an'en'd view of Fig. 7 as-viewe d from the left;

99 of Fig. 7; 1 Fig. lO is a horizontal section through one of the switches as indicated on the line 10-10 inFig..3; f

Fig. 11 is a vertical section on the line I 1-1-11 in Fig. 10;

Fig. 12 is an elevation of the parts shown in Figs. 10 and 11 the case of the switch be "ing in section;

1926. Serial no. 108,118.-

Fig. 13 is a perspective View of the adjust bumpers with electrical connections to other apparatus.

Referring to-the drawings more specifi-- callygthe main part of the bumper is the. bow-shapedmember 10 which is secured by bolts 11 to the channel bar 12, the latter being secured to-the automobile in any well-' known manner. An ornamentalcover .13 is; placed over the parts of the bow member 10 and channel bar 12 contacting with each other. 1 I I The outer ends of bow member '12 are=bent inwardly toward each other to form extensions 14 parallel "with the channel bar-'10. The right-hand extension 14 carries the ad-- justable cable anchor 18. The'a'nc'hor 18 is formed with a pairof headed lugs 219"eX5 tending into open notches-20 cut into'the sides of the bumper. One side oft'he head: of each of lugs 19 has an extension as at 21 which must be slipped into notch20-as shown;in

Fig. 6 and which prevents disengagement of the anchor-when in holding pos1t1on as shown'in Fig. 5. An anchor member 15 similarly attached to thepleft hand exten sion 14 andholds the looped end .cable loopv 16', as shown in Figs.- 1 and 2, the "attach-ment being concealed by 'anornamental Figs. 5 and 7. 4 Eachend o f the cablep'asses into a-hole 22tormedin a bloc-k23. A pair of loose pins '24 having. disc flanges 25 and projecting tapered points 26 are loosely mounted ina block 27 and situatedso astobe directly opposi-tethe holes 22. A screw 28 passes loosely through block 23 and is threaded into block 27, so that upon tightening up flanges 25 press the cable strands into the counter bores 30, thereby firmly anchoring the cable ends to block 23. The inner end or screw 28 passes through an "opening 31} in a lateral flange 32 carried by anchor member;

.cover 17 having bayonet -Sl0tS' 3 5 engaging head 29 of the screw, 'thetaperedfpins are -jammed; into the ends of the cable and the 10o Fig. 9 is'a transverse section on the line 18 and receives an adjusting nut 33. It

will be clear that by screwing the adjusting *nut downthe block 23 will be inovedtowiard the right of Fig; 7 thereby tightening the cable. The anchor member '18- pro:

ire

tected by an ornamental.cover17 which is provider. to the adjustingnut. 7

Near each extension 1% the strands of the cable loop 16 are held apart by spreaders 36. As shown in F l the spreader is a tube member slotted at its upper-end at 37 to receive the upper strand of loop 16, the right hand side of the slet being extended at 38 to permit illlelIlSGlitlOn of the end oi the upper cross cable 39 intothe tube. AcapaO is placed overthe endof the spreader to hold it to- "gether and a clamp screw 41 is threaded into the end of the tube to securely gripthe cables.

Each end of each of the spreaders. is simi-x larly formed. .The upper cross cablemember '39 is anchored in theupper end of eachof the spreaders,.and is'attached to theupper strand 01' loop 16 at spaced points by clips 42 curedto the lower strand of loop 16 by clipsv and to the lower crosscable members?) by clips 44 at points midway between the clips The lower cross cable member 43 1s se- 45 at points opposite the clips 12. Thisstructure forms a symmetrical network of flexible cables across the open front 01" how member 10.

' Just inside of each end of the channel bar '12 is located a contact switch 46 having a I so.

- the bow member 10;

in a one-piece ca'sing48 riveted at 49, Fig. 10,

sliding arm 47 extending through an aperture in the channel bar and contactingwith The switch 18 inclosed .to a supporting plate 50 whichhas one-end hooked over the end of the channel bar at 51 and the other end clamped by the bolt 11. The sliding arm 47 extends through openings in the casing and; within the casing is provided on itsupper side with a notch 52 which receives one-end of a spring '53; The opposite end of. spring 53 is coiled about a stud 54 carried by. the casing-and has its end engag ing one side of the casing to thereby resiliently press the arm 47 into contact with the bow member 10.

The lower side of arm 47 is formed with an elongated notch 55. An adjustable normally stationary contact'member is mountedin the casing for cooperat on with the shding arm- 47. The main part of this'stationary contact is a block of fiber 55' having a square opening 56 receiving a square nut 57, Figs. 11 and 13.. An adjusting screw 58 has a counten' sunk, head 59 swiveled in the supporting plate 50 and held against longitudinal move- -ment by the channel bar 12. The screw v58 extends-freely through the block 55, isscrewthreaded through the nut 57 and has its free end kerfed andextended through an opening in the casing. A fiber plate 6 Ois laid over the block 55.. and a contact piece 61 is placed on top ofthe plate 60. A binding bolt 62 passes through piece 61, plate 60, block 55, and fiber bushing 63 fitting into a slot 64 formed in the lower wall of the casing. Rivets 65 hold the with an opening 34 to permit access .ing its ends attached to the contact piece against rotation upon thesliding block. A resilient arm 66 formed on the contact piece has a raised head portion 67 adapted normally to" extendinto the notch 55 without touching the arm 17 as shown in Fig. 11. The adjusting screw 58 provides means for moving block 55' laterally to place the vhead 67 in proper relation to the notch55.

The block is then secured in this position by tightening the nut 68, and the conductor w1re 69"i.s'secur d to the binding bolt 62 and led appropriate circuits.

v It will be clear from whenever the bumper receives an impact the arm 17 will contact with the head 67. If the blow is received in the cable networkthesides of the bow will'be' pulled toward each other, permitting spring 58 to movethe'bolt. forward, while if the blow is received byone V to the positive terminal of the batterythrough Figs. 1 and loan,"

off the forward extensions of the bow cor-' responding arm 17 will be pushed toward the v rear. In either case head 67 will contact with a side of the notch 55.. f l

Fig. 14 indicates how front and rear bumpers oi the typeherein disclosed can be used in the automaticcontrol system disclosed in mycopending application Serial No. 102402 filed on April 16, 1926. The channel bar 12 of 7 each bumper is grounded, and since thelslid-' bar, a bow member attached to said channel bar, an anchor secured to one end of the bow member, an ad ustable anchor secured to the other end of the bow member, and a cable loop passing around the first anchor and havadjustable anchor; f v

8. .A cable bumper comprisinga channel bar, a bow member having its central portion attached to the channel bar and. its end portions-bent to form inward. extensions, notches formed on opposite sides of the'extensions, anchors having lugs engagingthe notches, and a cable member secured to the anchors.

4L A cable bumper comprisinga channel ibar,'a bow member having its central portion attached to the channel bar and its end portions bent to form inwardextensions, notches formed on opposite sides of the extensions,

an anchor engaging the notches ofione extension, an ad ustable anchor engaging the ing arm 4.7 is inelect-rical contact with; the 1 notches of the other extension, and a cable bumper member, a cable loop passing over a part carried by one end of the bumper memher, the ends of the cable passing through holes'in a block, tapered pins carried by a second block, means for clamping the blocks together to cause the tapered pins to spread the cable ends, thereby anchoring the cable ends in said first block, and means for securing the V blocks to the opposite end of. the bumper member.

6. A cable bumper comprising a main bumper member, a cable loop passing over a part carried by one end of the bumper memher, the ends of the cable passing through holes in a block, tapered pins carried by a second block, a screw swiveled through the first block and threaded through the second block, said screw passing'through a flange carried by the other end of the bumper and receiving an adjusting nut, and an ornamental cover concealing the attachment of the cable to the bumper at each end. v

7. A cable bumper comprising a bow memher, a cable loop secured to opposite ends of the bow member, a spreader. placed in. the loop near each end of theloop, and cross cable members having their ends anchored in the spreaders. 1 Y

8. A cable bumper comprising 7 a main bumper member, a'cable loop secured to opposite ends of the bumper membena spreader placed in the loop near each end of the loop, an upper cross cable member and a lower cross cable forming a network across said cable loop, each end of each spreader having means for clamping the cable loop and an end of a cross-cable member.

9. A cable bumper comprising a main bumper membeiga cable loop secured" to op posite ends of the bumper member, a tubular spreader placedinthe loop near each endof the loop, an upper cross cable member and a lower cross cable forming a network across said cable loop, each end of each spreader being split to receive the cable loop and an end of a cross cable member, a cap surrounding the split end of the spreader, and a screw threaded into the split end to clamp the I cables.

In testimony whereof I affix my si nature- KA osTEN' sc A iiAN, 

